I thought I knew some stuff about DD 2 strokes.How can a broken tip from and injector leak all that fuel to the outside?I would have thought the fuel would leak back down to the crank case or flood the cylinder.What am I missing.Thanks Frank

Sorry all,I didnt mean to abandon this post. My notifications havent been working, noticed the email on my profile isnt right. Asking for it to be fixed now.

Updatevisual inspection on that cylinder showed no trace through the airbox cover. Mechanic suggested it must have passed through exhaust. Is that possible, would it fit. He admitted in all his years running mci's he has never seen this issue.

Well - not out of the woods yet - ran with little smoke the last couple weeks - but got white smoke againi think the injector issue was a symptom of something elsewhile running i noticed the same leak as last time (raw fuel coming out of exhaust manifold connection to exhaust pipe)so I popped off the airbox cover on the cylinder that got the new injector and found what is pictured below12 similar shape and size metal diamond shaped piecesthey look broken from a rod

I looked through the dd v71 manual - engine section and couldnt find anything remotely close to this shapewhat are they - where did they come from?im confused and praying this is a repairable situation

Those parts came out inside of the air box cover. they were stuck in it with all oily goop. I look inside of the cylinder with a bore scope and didn't find any significant marks or scratches or scuffs. I am pulling out the injector right now to use the borescope going to look at the top of the piston. Looking at the exploded view of the C 60and injector I don't see where these particular parts could have come from.